Microsoft announced the minimum seat requirement for Office 365 Multi-Geo Capabilities will be reduced from 2500 seats to 500 seats. This change will be effective as of June 2019. All the other original requirement will still remain. Due to this change small sized company’s can now benefit from the Office 365 Data at rest multi Geo Capabilities. With this new…

Protecting your Brand Name with DMARC full implementation guide , best practices and common mistakes

Today i am releasing a DMARC implementation guide that covers full implementation flow , best practices and common mistakes of a DMARC implementation. The Implementation guide also shows a new attacks abusing EAI (Link to post) to bypass DMARC and how to combat this. This guide will take email security for your domain to a higher level where it becomes…

Validate Office 365 client or server connectivity by scanning the endpoints as released on the JSON API

Trouble shooting client connectivity from clients or servers to Office 365 was allways a little bit hard to do when enterprise company’s have their firewalls setup to not open all trafiic to Office 365. Microsoft allways had a site and RSS so you could follow wich url`s, and ip`s you should have opened. Right now the old site has been…

SMTP Security Suite: New SPF Analyzer Tool

Do you recognize that a lot of times when you search for tools on the internet they are either paid, don`t tell you the entire story, or are hosted by companies trying to market their product and sell you a service.  Due to all these issues I started to build new tools to serve the community. I present the first…

Microsoft releases Office 365 Multi Geo and reduces the cost for entry level companies

As of April Microsoft releases Office 365 Multi GEO to general availability Multi-geo is designed to be a feature that helps multinational organizations address local data residency requirements in parts of the world. With Multi-Geo these concerns are addressed by enabling a single Office 365 tenant to span across multiple Office 365 datacenter geographies (geos) and giving customers the ability to store their…

PS Script update: Connect-Exchangeservice function updated

This week I release the new and Improved “Connect-ExchangeService” function with complete rework of the auto resolve functionality. You can find the script in the TechNet gallery or under the script section of this site. The full explanation of this function can be found on the release page here: http://www.tech-savvy.nl/2017/01/26/ps-script-connect-to-one-or-multiple-exchange-server-powershell-sessions-from-any-computer/ Version Changes: Date: (dd-MM-YYYY) Version: Changed By Info: 25-01-2017 V1.0 Martijn…

How and why should I protect my Office 365 organization from Email Address Internationalization (EAI) attacks?

On 27 December 2017 Microsoft announced that the support for EAI in email has been implemented. This means that the Microsoft cloud now supports EAI email addresses in outlook, email flow, connectors and rules. For now there won’t be any support for adding IDN domains to the platform itself. With this new functionality in Office 365 a new door opens…